Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 676-11635-00 0.25 Viewer:974 OEM No. : 676-11635-00-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 6K5-11635-03 0.25 Piston Kit 6G5-11631-00 STD Filter, Engine 16510-45H10-000 Gasket 61N-14198-00-00